| 基于B样条的直升机航迹处理方法 |
| |
| 引用本文： | 李栋,冯婷.基于B样条的直升机航迹处理方法[J].航空计算技术,2008,38(1):32-35. |
| |
| 作者姓名： | 李栋 冯婷 |
| |
| 作者单位： | 1. 北京航空航天大学,航空科学与工程学院,北京,100083;陆航研究所,北京,101114
2. 陆航研究所,北京,101114 |
| |
| 摘 要： | 为满足航迹规划中最优航迹的要求,需要对参考航迹进行处理.提出了一种基于B样条曲线的直升机航迹后处理方法,方法以改进蚁群算法生成的参考航迹为基础,利用B样条曲线自身连续性、局部性、曲率变化均匀等特性,并根据直升机低空飞行的过载、最大飞行速度等限制条件,对参考航迹的航迹点进行修正和插值.B样条曲线也有利于对航迹进行局部重规划,可以满足出现意外情况时航迹修改和调整的要求.对B样条处理后的航迹采用广义预测方法(GPC)进行跟踪控制,并与线性插值处理得到的航迹进行比较,从航迹控制的角度验证了该后处理方法可以提高跟踪控制的性能和操纵品质.
|
| 关 键 词： | 航迹 规划 B样条 广义预测控制 |
| 文章编号： | 1671-654X(2008)01-0032-04 |
| 修稿时间： | 2007年8月10日 |
Processing of Helicopter Trajectory Based on B-spline |
| |
| LI Dong,FENG Ting.Processing of Helicopter Trajectory Based on B-spline[J].Aeronautical Computer Technique,2008,38(1):32-35. |
| |
| Authors: | LI Dong FENG Ting |
| |
| Institution: | LI Dong(1,2),FENG Ting1 (1.School of Aeronautic Science , Technology,Beijing University of Aeronautics , Astronautics,Beijing 100083,China,2.Aviation Research Institute,Beijing 101114,China) |
| |
| Abstract: | In order to search the optimal trajectory in the planning,the reference trajectory needs to be processed.A method on post- rocessing of helicopter trajectory based on B- pline was established.On the basis of the reference trajectory derived from the improved ant colony algorithm,the points on the reference trajectory can be interpolated on the basis of B- spline characteristics,including continuity,locality and mean variation of the curvature.Simultaneously,these points need to be modified in terms of the l... |
| |
| Keywords: | trajectories planning B- spline GPC |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
